The rise and fall of the Chen family in four generations of the "Linheyi" Inn in Bianzhou (now Kaifeng) (605, the first year of Emperor Yang's great cause in the Sui Dynasty - 820, the Yuanhe reign of Emperor Xianzong of the Tang Dynasty)
Core: The Grand Canal is the four-fold contradiction of the bloodline of the empire: national projects and the blood and tears of the people / economic ties and war passages / civilizational exchanges and ecological disasters / opportunities of the times and personal shackles
